Submission #127269

#	Time	Username	Problem	Language	Result	Execution time	Memory
127269		gaoxam123	Art Exhibition (JOI18_art)	C++14	100 / 100	970 ms	8340 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define int long long
int n,ans=-1e15,tmp=-1e15,sum=-1e15;
pair<int,int> a[500005];
signed main(){
	cin>>n;for(int i=1;i<=n;i++) cin>>a[i].first>>a[i].second;sort(a+1,a+n+1);
	for(int i=1;i<=n;i++){tmp=max(tmp,a[i].first-sum);sum+=a[i].second;ans=max(ans,sum-a[i].first+tmp);}cout<<ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50